b79b85ad76
‘drvAttrs’. This will simplify the implementation of functions such as ‘overrideDerivation’ in Nixpkgs, which need to filter out any added attributes such as outPath.
28 lines
738 B
Nix
28 lines
738 B
Nix
/* This is the implementation of the ‘derivation’ builtin function.
|
||
It's actually a wrapper around the ‘derivationStrict’ primop. */
|
||
|
||
drvAttrs @ { outputs ? [ "out" ], ... }:
|
||
|
||
let
|
||
|
||
strict = derivationStrict drvAttrs;
|
||
|
||
commonAttrs = drvAttrs // (builtins.listToAttrs outputsList) //
|
||
{ all = map (x: x.value) outputsList;
|
||
inherit drvAttrs;
|
||
};
|
||
|
||
outputToAttrListElement = outputName:
|
||
{ name = outputName;
|
||
value = commonAttrs // {
|
||
outPath = builtins.getAttr outputName strict;
|
||
drvPath = strict.drvPath;
|
||
type = "derivation";
|
||
currentOutput = outputName;
|
||
};
|
||
};
|
||
|
||
outputsList = map outputToAttrListElement outputs;
|
||
|
||
in (builtins.head outputsList).value
|